NHTSA ID Number: 10178397
Manufacturer Communication Number: PIT4916J
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
23 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | EQUINOX | 2010-2021 |
| GMC | TERRAIN | 2010-2020 |
Bulletin No.: PIT4916J
Published date: 07/30/2020
Preliminary Information
PIT4916J Normal Characteristic – Wind Buffeting Noise With a Rear
Window Down
Models
Brand: Model: Model Years:
VIN:
Engine: Transmissions:
from to
Chevrolet Equinox 2010 – 2021 All All All All
GMC Terrain 2010 – 2021 All All All All
Supersession Statement
This PI was superseded to add Model Year 2021. Please discard PIT4916H.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
Some customers may comment of a helicopter type noise when a rear window is lowered.
This is known as buffeting and it is a low frequency, high volume wind noise that may occur
in a moving vehicle with a rear window open.
Recommendations / Instructions
This is a normal characteristic of this vehicle, but the concern can be minimized by lowering
a front door glass approximately 1 to 2 inches.
Installation of accessory weather deflectors along the front door glass may also be effective
in alleviating the buffeting noise.
Customer Information
Please communicate to the customer this condition is a normal operating characteristic of
their vehicle. It will not impact the designed performance or reliability of the vehicle.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916J
Published date: 07/30/2020
https://www.nhtsa.gov/recalls?nhtsaId=10178397
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Open in new tab NHTSA ID Number: 10162148
Manufacturer Communication Number: PIT4916H
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916H
Published date: 06/24/2019
https://www.nhtsa.gov/recalls?nhtsaId=10162148
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NHTSA ID Number: 10160688
Manufacturer Communication Number: PIT4916G
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916G
Published date: 04/24/2019
https://www.nhtsa.gov/recalls?nhtsaId=10160688
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NHTSA ID Number: 10119025
Manufacturer Communication Number: PIT4916F
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916F
Date: Oct-2016
https://www.nhtsa.gov/recalls?nhtsaId=10119025
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NHTSA ID Number: 10114694
Manufacturer Communication Number: PIT4916E
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916E
Date: Aug-2015
https://www.nhtsa.gov/recalls?nhtsaId=10114694
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NHTSA ID Number: 10114502
Manufacturer Communication Number: PIT4916D
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916D
Date: Apr-2015
https://www.nhtsa.gov/recalls?nhtsaId=10114502
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NHTSA ID Number: 10112959
Manufacturer Communication Number: PIT4916C
Summary
This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT4916C
Date: Apr-2013
https://www.nhtsa.gov/recalls?nhtsaId=10112959
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NHTSA ID Number: 10062893
Manufacturer Communication Number: PIT4916C
Summary
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1 Associated Document
Service Bulletin Document
Bulletin No.: PIT4916C
Date: April, 2013
https://www.nhtsa.gov/recalls?nhtsaId=10062893
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Last update on 2021-04-20 / Affiliate links / Images from Amazon Product Advertising API
Last update on 2021-04-20 / Affiliate links / Images from Amazon Product Advertising API
John Elks
How can you say this a normal operation and will not affect the vehicle performance. This only true if if you do not consider confort as aperformance indicator. I just purchase a brand new GMC seirria and the noise is terrible. I just got back from taking it back to the dealer for the problem and they showed me a letter stating the same as above. This problem was not stated by the saleman when purchasing the vehicle, but in my in my discussion with them today, it seems like they believe every vehicle does this. That is not the case, Nevada has a lemon law and if a pro lem with a vehicle can be fixed, they have to take it back. If this problem is not correct, that is route I will be taking. I think it is stupid tbat GMC would even put a vehicle on the market with this kind of problem.